Identify classifications of microorganisms based on cell wall structure.
DefinitionIdentification should include
- the cell wall structure of gram-positive bacteria
- the cell wall structure of gram-negative bacteria
- the gram stain reaction and morphology of Staphylococcus and Streptococcus, gram-positive cocci vs. E. coli, and gram-negative rods.
- What are the differences in the cell wall of a gram-positive vs. a gram-negative bacteria?
- Why would a Gram stain be ineffective in staining a virus?
- Why is the Gram stain such a rapid and cost-effective means for early diagnosis of bacterial infections?
- How can the Gram stain reaction and morphology be used to differentiate Staphylococcus and E. coli?
Related Standards of Learning
The student will read, interpret, analyze, and evaluate a variety of nonfiction texts.
- Use critical thinking to generate and respond logically to literal, inferential, and evaluative questions about the text(s).
- Identify and synthesize resources to make decisions, complete tasks, and solve specific problems.
- Analyze multiple texts addressing the same topic to determine how authors reach similar or different conclusions.
- Recognize and analyze use of ambiguity, contradiction, paradox, irony, overstatement, and understatement in text.
- Analyze false premises claims, counterclaims, and other evidence in persuasive writing.
The student will investigate and understand relationships between cell structure and function. Key concepts include
- evidence supporting the cell theory;
- characteristics of prokaryotic and eukaryotic cells;
- similarities between the activities of the organelles in a single cell and a whole organism;
- the cell membrane model; and
- the impact of surface area to volume ratio on cell division, material transport, and other life processes.